本ほん分ぶん

noun

one's duty; one's part

Refers to the fundamental role, responsibility, or obligation one is expected to fulfill, often in a social, professional, or moral context.

• 学がく生せいの本ほん分ぶんは勉べん強きょうすることだ。

  A student's duty is to study.

• 彼かれは自じ分ぶんの本ほん分ぶんをわきまえている。

  He knows his place (his proper role).